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Diffstat (limited to 'Doc/whatsnew/3.6.rst')
| -rw-r--r-- | Doc/whatsnew/3.6.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.6.rst b/Doc/whatsnew/3.6.rst index 936ea2d..3f5f520 100644 --- a/Doc/whatsnew/3.6.rst +++ b/Doc/whatsnew/3.6.rst @@ -2316,6 +2316,17 @@ Changes in the Python API a :exc:`DeprecationWarning` in Python 3.6 and a :exc:`RuntimeError` in Python 3.8. +* With the introduction of :exc:`ModuleNotFoundError`, import system consumers + may start expecting import system replacements to raise that more specific + exception when appropriate, rather than the less-specific :exc:`ImportError`. + To provide future compatibility with such consumers, implementors of + alternative import systems that completely replace :func:`__import__` will + need to update their implementations to raise the new subclass when a module + can't be found at all. Implementors of compliant plugins to the default + import system shouldn't need to make any changes, as the default import + system will raise the new subclass when appropriate. + + Changes in the C API -------------------- |